Home / 2,353.40-3,247.77-1,291.24

Finding the Fourth Proportional to 2,353.40, 3,247.77 and 1,291.24

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Solution

The fourth proportional to 2,353.40, 3,247.77 and 1,291.24 is: 1,781.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,353.40 : 3,247.77 = 1,291.24 : x
  2. Step 2: Convert to fraction form
    2,353.40/3,247.77 = 1,291.24/x
  3. Step 3: Cross multiply
    2,353.40x = 3,247.77 × 1,291.24
  4. Step 4: Simplify right side
    2,353.40x = 4,193,650.53
  5. Step 5: Solve for x
    x = 4,193,650.53/2,353.40
  6. Step 6: Final answer
    x = 1,781.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.